From acb759c07911491f6860619ce3037cec03d275a7 Mon Sep 17 00:00:00 2001
From: Jeff Knurek <j.knurek@travelaudience.com>
Date: Thu, 21 Mar 2019 16:19:02 +0100
Subject: [PATCH] feat(helm) add 'get version' to get the chart version
Signed-off-by: Jeff Knurek <j.knurek@travelaudience.com>
---
cmd/helm/get.go | 1 +
cmd/helm/get_version.go | 75 ++++++++++++++++++++++++++++++++++++
cmd/helm/get_version_test.go | 47 ++++++++++++++++++++++
3 files changed, 123 insertions(+)
create mode 100644 cmd/helm/get_version.go
create mode 100644 cmd/helm/get_version_test.go
diff --git a/cmd/helm/get.go b/cmd/helm/get.go
index 20a4c042f..f9ed6fb91 100644
--- a/cmd/helm/get.go
+++ b/cmd/helm/get.go
@@ -78,6 +78,7 @@ func newGetCmd(client helm.Interface, out io.Writer) *cobra.Command {
cmd.AddCommand(newGetManifestCmd(nil, out))
cmd.AddCommand(newGetHooksCmd(nil, out))
cmd.AddCommand(newGetNotesCmd(nil, out))
+ cmd.AddCommand(newGetVersionCmd(nil, out))
// set defaults from environment
settings.InitTLS(f)
diff --git a/cmd/helm/get_version.go b/cmd/helm/get_version.go
new file mode 100644
index 000000000..c76c6245d
--- /dev/null
+++ b/cmd/helm/get_version.go
@@ -0,0 +1,75 @@
+/*
+Copyright The Helm Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+ "fmt"
+ "io"
+
+ "github.com/spf13/cobra"
+
+ "k8s.io/helm/pkg/helm"
+)
+
+var getVersionHelp = "This command fetches the chart version for a given release."
+
+type getVersionCmd struct {
+ release string
+ out io.Writer
+ client helm.Interface
+ revision int32
+}
+
+func newGetVersionCmd(client helm.Interface, out io.Writer) *cobra.Command {
+ get := &getVersionCmd{
+ out: out,
+ client: client,
+ }
+ cmd := &cobra.Command{
+ Use: "version [flags] RELEASE_NAME",
+ Short: "download the chart version for a named release",
+ Long: getVersionHelp,
+ PreRunE: func(_ *cobra.Command, _ []string) error { return setupConnection() },
+ RunE: func(cmd *cobra.Command, args []string) error {
+ if len(args) == 0 {
+ return errReleaseRequired
+ }
+ get.release = args[0]
+ get.client = ensureHelmClient(get.client)
+ return get.run()
+ },
+ }
+
+ f := cmd.Flags()
+ settings.AddFlagsTLS(f)
+ f.Int32Var(&get.revision, "revision", 0, "get the named release with revision")
+
+ // set defaults from environment
+ settings.InitTLS(f)
+
+ return cmd
+}
+
+// getVersion implements 'helm get version'
+func (g *getVersionCmd) run() error {
+ res, err := g.client.ReleaseContent(g.release, helm.ContentReleaseVersion(g.revision))
+ if err != nil {
+ return prettyError(err)
+ }
+ fmt.Fprintln(g.out, res.Release.Chart.Metadata.Version)
+ return nil
+}
diff --git a/cmd/helm/get_version_test.go b/cmd/helm/get_version_test.go
new file mode 100644
index 000000000..81c9cdfd9
--- /dev/null
+++ b/cmd/helm/get_version_test.go
@@ -0,0 +1,47 @@
+/*
+Copyright The Helm Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+ "io"
+ "testing"
+
+ "github.com/spf13/cobra"
+
+ "k8s.io/helm/pkg/helm"
+ "k8s.io/helm/pkg/proto/hapi/release"
+)
+
+func TestGetVersion(t *testing.T) {
+ tests := []releaseCase{
+ {
+ name: "get chart version of release",
+ args: []string{"kodiak"},
+ expected: "0.1.0-beta.1",
+ resp: helm.ReleaseMock(&helm.MockReleaseOptions{Name: "kodiak"}),
+ rels: []*release.Release{helm.ReleaseMock(&helm.MockReleaseOptions{Name: "kodiak"})},
+ },
+ {
+ name: "get version without args",
+ args: []string{},
+ err: true,
+ },
+ }
+ runReleaseCases(t, tests, func(c *helm.FakeClient, out io.Writer) *cobra.Command {
+ return newGetVersionCmd(c, out)
+ })
+}
--
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